Mariners starter Taijuan Walker (3-6, 3.45 ERA) held the Red Sox scoreless for five innings on six hits, but was replaced by Vidal Nuno after 88 pitches and wound up with a no-decision.
The Red Sox took two of three from the Mariners to improve to 39-29, while Seattle (36-33) dropped to 2-4 on its road trip and 8-15 over its last 23 games.
MOMENTS THAT MATTERED
Guti loves Fenway: Don't blame Gutierrez if he tries staying behind when the Mariners head on to Detroit to continue their road trip.